austen



J. IV. AUSTEN.

LAMP.

APPUcATmN FILED MAR. 10, 191s.

l l 94,930 Pafented Aug. 15, 1916.

2 SHEETS-SHEET I.

Fiyi J5. "I3 .41.1A

uw: uro@ '1. M, AUSTEN.

LAMP.

APPLICATION FILED MAR. I0, ISIS.

1 ,1 94,930. Patented Aug. 15, 1916.

2 SHEETS-SHEET 2.

Wm d M Y JOI-IN BI. USTEN, OF SACRAMENTO, CiLIERNIA.

LAMP.

To atl whom it may concern:

Be it known that I,l` JOHN M. Vlusrnv', a citizen of the .United States, residing at Sacramento, in' the county or SacramentoA and State of California, have invented new and useful Improvements in Lamps. of which the following is a specification.A

This invention relates to ortable lamps yand moreparticularly to the electrical type adjustment so that the rays from the illuminating means may strike the lens at the proper angle to be diverged or converged to- Ward each other upon'issuing from the lens.

Another object of the invention is to provide two lenses one of which is adjustable and supports the illuminating means so that the amount oi light rays passing through the lens may be accurately regulated and also the amount of light rays passing through a second lens ci' different color.

A further object of the inventicn'is the arrangement of the elements of the lamp proper-so that the amount of rays passing to the front of the lamp in proportion to the amount of rays passing `to the rear of .the lamp proper may be accurately regulated.

Nith these and other objects in view the invention consists in the construction, combination and arrangement of parts as will be hereinafter more fully described, illustrated in the vaccompanying drawings and pointed out in the claims hereunto appended.

In the drawing: Figure l is a side elevation of the apparatus, Fig. 2 is a vertical sectional view on the line 2-2 of Fig. 1. Fig. 3 is a vertical sectional view on the line 3-3 of Fig. 2, Fig. l is a horizontal sectional view on the line lr-fa' of Fig.- 1. Iig. 5 is a sectional view taken through one side of the reflector. Fig. 6 is a. sectional view through the support for the casing of the lamp propeingr Fig. 7 is a perspective -view of one of .theiiianges Fig.. 8 shows two diagrammatic views illustrating the direction` of travel of the rays when the illuminating device is adjusted.-

In thedrawing the numeral 1 designates a Specification of Letters Patent. Pignted Aug, i5, 1916,

,pphcation filed March 10, leid Serial NorAZ.

receptacle of a size to support a dry cell and for holding the dry cell against vibratory movement I provide a clamp 2 of resilient material and so constructed as to engage 'two of the corners of the receptacle. This receptacle is provided with a cover 8 removably mounted upon the receptacle by means of the inturned ends #l of a handle 5 engaging diametrically opposite openings 6 and 7 formed respectively in the receptacle and the cover. The top of the cover inclines upwardly and the uppermost .portion thereof has passing therethrough a bolt 8. Mounted upon both ends of the bolt are clips 9, each having` a pair of flanges 10 engaging opposite portions of the top of the cover and an upstanding extension 11 formed with a groove 12 receiving the rib 13 on the associated ear 14 formed upon the casingv 15 of the lamp proper. At this point I wish to call attention to the-fact that although I show two of the clips I wish it to be understood that one oi the samecan be dispensed with.

From the preceding description it will be .and a rear colored lens 17 while the side of the casing has mounted therein a glass plate 18. plate is to allow the rays from the illumi hating means to pass forwardly, laterally and rearwardly so as to be visible from the side, front and rear of the lamp. Snugly ittingthe interior of the casing 15 and -at a point adjacent the front lens 16 is a re- Hector 1f) foi-ined with a centrally'arranged opening ZO. The reflector 19 is of such a shape as to hare its entire rear surface spaced from the adjacent interior surface of the casing so as to act in the capacity of a "reflecting surface for the purpose hereinafter described. The casing has formed integral therewith or mounted thereupon in any suitable manner a pair of guides 2l and arranged between the guides is a tongue 22 having an angularly bent extremity 23. Slidably mounted within the guides is a plate 2li forming a portion of a second frelector 25, the latter being arranged in axial alinement with the heretofore mentioned reflector 19. The plate 24; is formed with a centrally arranged series of depressions 26 adapted to successively ccperate The purpose of the lenses and glass with tl.. extremity 23 for holding the plate and with it the reflector in any of its adjust ed positions. The reliector at a central. point has mounted therein a. adapted to receive any suitable illuminating means such as en electric bulb 28. rlhe remaining terminal ttor the hull) 28 is formed hy means of the hand Q9 encircling but insulated from the socket and provided with a contact 30 adapted to engage the central electrode of the bulb. For completing' the invention l have provided a switch 3l mounted upon the cover ot the receptacle and haring a portion projecting beyond the latter so as to he manipulated by the linger of the operator. This switch is arranged. in the circuit that runs from the battery to the hull; so that when in one posit-ion the hull) will he illuminated and when in another position it will he deinergized.

F rom the foregoing description it will be seen that I have provided a portable type of lamp that has a number of ailvantages such as allowing the parte' to he readily cleaned and also to regulate the distance of the illuminating means from tl lenses so as to vary the distribution ot the light rays. This latter action is clearly forth in the diagrammatic vieu' of the drawing. Another important feature of my inven tion is the manner ot adjusting' one reflector with relation to another rellector that i stationary so that more onless light will pass between the reflectors and he re.- fiected by the .-'surifaee of the stationery re- Hector toward the rear lens in an indirect manner.

From the ioregoing description taken in connection with the accompanying drawing socket 27 y niet-.eso

it should he apparent that I have provided a device which is admirably adapted for the purpose for Which it is intended, that the device is simple, durable and etlicient of construction and that the` device may be manufactured and sold at a comparatively low cost.`

Having described my invention what. I claim is:

1. A lamp comprising a casing having guideivays, a lens mounted in said casing, a reflector mounted behind said lens and provided with a centrally arranged opening, a second reflector slidably mounted in said guideways so as to move toward and away from said opening and illuminating means supported by said reliector in alinement with the opening in said reector.

A lamp comprising'a front lens, plate mounted in one side of the casing, e reflector mounted in said casing adjacent said front lens and terminating midway of said glass plate and formed 'With a centrally arranged opening, a second reflector having a plate extension slidably mounted in said casing1 illuminating means centrally arranged in said second reiector so as tomove toward and away from the opening in said first reflector so as to vary the amount of light rays passing through said glass plate and means enavinfr de ressions in said h l'n D a glass plate for adjust-ably holding said second re- Hector in its various positlons.-

In testimony whereof I aiix my signature in presence of two Witnesses.

JOHN M. AUSTEN. lliiitnesses EDWIN Dunes CARPENTER, CLARENCE L. BADER. 

